Orbital diamagnetism in multilayer graphenes: Systematic study with the effective mass approximation

Mikito Koshino, Tsuneya Ando

Research output: Contribution to journalArticlepeer-review

178 Citations (Scopus)

Abstract

We present a theoretical study on the orbital magnetism in multilayer graphenes within the effective mass approximation. The Hamiltonian and thus susceptibility can be decomposed into contributions from subsystems equivalent to monolayer or bilayer graphene. The monolayer-type subband exists only in odd layers and exhibits a delta-function susceptibility at εF =0. The bilayer-type subband appearing in every layer number gives a singular structure in the vicinity of εF =0 due to the trigonal warping as well as a logarithmic tail away from εF =0. The integral of the susceptibility over energy is approximately given only by the layer number.

Original languageEnglish
Article number085425
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume76
Issue number8
DOIs
Publication statusPublished - 2007 Aug 17

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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